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| A Naval Ships Design, Construction and Repair, etc. | |
|---|---|
| AC | Construction |
| AD | Design and General Characteristics |
| AF | Fittings and Equipment |
| AH | Hulls |
| AL | Laid Up Ships; Condition, Repair, Inspections, etc. (includes "Fitting Out" Status) |
| AO | Boats (Small) |
| AQ | Qualities, Sailing, etc. (including Trial Trips) |
| AR | Repair |
| AS | Spars and Rigging |
| AV | Miscellaneous |
| AX | Salvage of Wrecks, etc. |
| AY | Purchases, Sales, and Final Disposition of Naval Vessels (except Prizes--see XZ, and Merchant Ships--see SY) |
| B Ordnance | |
| BA | Ammunition |
| BG | Guns and Gunnery |
| BH | Hand Weapons (Cutlasses, Rifles, Revolvers, etc.) |
| BM | Mines and Torpedoes |
| BO | Ordnance Equipment |
| BR | Armor and Armament, General |
| BV | Miscellaneous |
| D Communication | |
| DB | Books, Signal and Tactical |
| DC | Codes, Cryptography and Censorship |
| DE | Emblems and National Flags |
| DM | |
| DP | Private and Special Signals |
| DR | Radio |
| DS | Signals, General |
| DT | Telegraph and Cable |
| DV | Miscellaneous |
| DX | Courier and Secret Service |
| E Engineering | |
| EA | Auxialiary Machinery |
| EB | Boilers, Steam |
| EE | Engines (Marine) |
| EL | Electrical Appliances |
| EM | Machinery Plants in General |
| EP | Propellers and Paddles |
| EV | Miscellaneous |
| H Battles and Casualties to Ships | |
| HA | Engagement with Enemy War Vessels |
| HB | Battle Casualties to Materiel |
| HC | Engagement with Enemy Raiders (and Pirates) |
| HF | Fires, Explosions, etc. |
| HG | Groundings, Strandings, Foundering, etc. |
| HJ | Joint Military-Naval Engagements |
| HK | Collisions |
| HL | Engagements of Ships and Naval Forces with Land Forces (see OH) |
| HM | Merchant Ship Engagements |
| HP | Privateer Engagements (With or Of Enemy) |
| HV | Miscellaneous |
| HW | Wind and Weather Casualties to Materiel |
| I Instructions, etc. | |
| IC | Circulars |
| IG | General Orders |
| IO | General Court-Martial Orders |
| IR | Regulations |
| IS | Special Orders |
| IV | Miscellaneous |
| K Nautical Technology and Science | |
| KH | Hydrography and Topography, including Surveying |
| KL | Lighthouses and Other Navigational Aids |
| KM | Meteorology |
| KN | Navigation and Astronomy |
| KS | Seamanship |
| KV | Miscellaneous |
| M Medical | |
| MA | Administration of Hospitals and Medical Departments |
| MC | Charitable and Pension Admissions to Naval Asylum or Hospital |
| ME | Equipment and Supplies (Technical) |
| MH | Health Conditions, General: Hygiene and Sanitation |
| MK | Casualties, Battle, Accident, etc. |
| ML | Personnel, Medical: Training, etc. |
| MM | Admissions: Individual Cases |
| MN | Discharges, from Medical Custody: Individual Cases and Deaths |
| MR | Routine Health Reports |
| MS | Special Reports, Epidemics, Special Incidents, etc. |
| MT | Treatment, Methods of |
| MV | Miscellaneous |
| MX | Medical Surveys and Examinations of Individuals |
| N Personnel | |
| NA | Complements, Rolls, Lists of Persons Serving in or With Vessels or Stations |
| NC | Ceremonies, Salutes, Courtesies, Honors, etc.: Military |
| NE | Drills, Training and Education |
| NF | Distribution and Transfers |
| NH | Heroic Acts, Commendation, Honors, Memorials, and Medals |
| NI | Promotion and Privileges, Rank, Retirement, and Reinstatement |
| NJ | Discipline (Minor) and Minor Deliquencies |
| NK | Technical and Professional Examinations of Individuals |
| NL | Living Conditions, Customs, etc. |
| NN | Commissions, Appointments, Applications, Acceptances, Oaths, Resignations, Discharges, and Similar Documents |
| NO | Courts-Martial, etc. |
| NP | Pilots |
| NR | Recruiting and Enlistments, Shipping Articles, etc. |
| NU | Uniforms, Characteristics |
| NV | Miscellaneous |
| NZ | Desertion and Straggling |
| O Operations of Naval Ships and Fleet Units | |
| OA | Administration and Organization (Internal) |
| OC | Cruises and Voyages (Special) |
| OD | Distribution (General) |
| OH | Shore Operations: Marine, Naval, etc. (except HL) |
| OI | Inspections of Military Efficiency |
| OJ | Joint Military Naval Operations (except HJ) |
| OL | Mobilization and Demobilization |
| OM | Minor Operations |
| ON | Strategy and Tactics |
| OO | Operations of Large Groups of Vessels |
| OP | Pilotage, Port Movements, Port Changes, etc. |
| OR | Chartered Vessels Operations (except Supply Ships--see OX) |
| OS | Shipsí Movements (Record of Arrivals and Departures) |
| OT | Training and Drills (with Ships) |
| OV | Miscellaneous |
| OX | Lines of Supply and Supply Ships (Charter Parties) |
| P Bases (Naval) (including Navy Yards and Stations) | |
| PA | Rolls (Civil) |
| PB | Administration of Station |
| PD | Dry Docks (Not Docking) |
| PF | Frauds and Irregularities (Civilian) |
| PI | Industrial Activity |
| PL | Labor and Civil Personnel |
| PM | Military |
| PN | Plant |
| PS | Sites and Boundaries |
| PV | Miscellaneous |
| R Prisoners and Prisons (including Prison Ships) | |
| RA | Prisoners of War Rolls and Lists (U.S. Nationals) |
| RB | Prisoners of War Rolls and Lists (Hostile Nationals) |
| RE | Release and Exchange, including Cartel Ships (except Lists) |
| RL | Paroles (except Lists) |
| RN | Aliens, Civilian, in U.S. |
| RP | Prisons, Shore and Ship |
| RR | Retaliation and Reprisal |
| RV | Miscellaneous (Impressed Seamen) |
| RX | Subsistence, Clothing, and Care |
| S Merchant Ships and Commerce | |
| SA | Administration (Internal) |
| SB | Design and Construction |
| SC | Commerce, Maritime (General) |
| SD | Distribution |
| SG | Illegal Service, including Blockade Running, Slave Trade, Piracy, Smuggling, etc. (except H and O Papers) |
| SM | Mercantile Businesses |
| SN | Personnel |
| SO | Operations, Voyages, etc. |
| SP | Privateers and Privateering (except HP) |
| SR | Registry, Clearance Papers, Port Charges, etc. |
| SS | Naval Assistance to Merchant Ships (except Political Aspects--see VP) |
| SV | Miscellaneous |
| SY | Purchases and Sales (except for Naval Use--see AX and AY) |
| SZ | Prizes (Merchant Ships and Private Property) (except Legal and Financial Aspects--see XZ) |
| V Governmental Relationships--Domestic and Foreign | |
| VA | Administration and Organization, Navy Department (Internal) |
| VC | National Policy |
| VD | Diplomatic Negotiations, Treaties, etc. |
| VI | International Relations and Politics |
| VL | Law, International |
| VM | Military Policy |
| VN | Naval Policy |
| VP | Protection of Individuals and Property Abroad |
| VR | Marine Corps: General Policies |
| VU | Revenue Cutter, Coast Guard, Lighthouse, Marine Hospital, Life Saving, and Other Maritime Governmental Services: General Policies |
| VV | Miscellaneous |
| X Supplies (including Finance) | |
| XA | Accounting and Finance (not Accounts) |
| XD | Claims (except in Prize Cases) |
| XF | Fuel and Water |
| XN | Naval Stores Afloat |
| XO | Clothing and Food |
| XP | Pay, Naval, and Allowance |
| XS | Naval Supplies Ashore |
| XU | Supplies for Naval Department (Internal) |
| XV | Miscellaneous |
| XZ | Prizes, Prize Money, and Prize Sales (Legal and Financial Aspects) |
| Y Pensions and Pensioner | |
| YL | Pension Laws, Regulations, etc. |
| (The "Z" files (Histories) formerly included in this part of the Subject File are now in the custody of the Navy Department Library.) | |
Navy Subject File, 1911-27 (Entry 520) | |
| A | Mining Operations |
| AC | Destruction of Mines |
| AE | English Mining Operations |
| AF | French Mining Operations |
| AG | Enemy Mining Operations |
| AI | Italian Mining Operations |
| AM | Mediterranean, Adriatic, and Aegean Barrages |
| AN | Northern Mine Barrage |
| AP | Mining Operations--Instructions, Plans, and Policies |
| AU | U.S. Mining Operations |
| AW | Warning of Mines |
| AZ | Results Obtained |
| B Batteries | |
| BA | Army and Navy Cooperation |
| BE | England (U.S. Navy Offer of Batteries to) |
| BF | France (U.S. Naval Battery with French Army) |
| BN | Naval Railway Batteries |
| BP | Plans and Policies |
| BZ | Results Obtained |
| C Convoy and Escort | |
| CB | Battleship Escorts |
| CC | Cruiser Escorts |
| CD | Subchaser Escorts |
| CE | Destroyer Escorts |
| CF | Patrol Force Escorts |
| CG | Convoy and Escort Groups |
| CK | Coast Guard Escorts |
| CL | Attacks on Convoys |
| CM | Mediterranean Convoys and Escorts |
| CN | Naval Overseas Transportation Service |
| CO | Merchant Ships in Convoy |
| CP | Convoy Plans and Policies |
| CR | Cruiser and Transport Service |
| CT | Troops Escorted, Transported, and Returned |
| CU | U.S. Army Transports and U.S. Army Chartered Transports |
| CV | Violation of Convoy Routes |
| CX | Cross Channel Service |
| CY | Army Coal Trade |
| CZ | Results Obtained (Summaries) |
| D Communications | |
| DC | Censorship--Cable, Correspondence, and Radio |
| DE | English Communications |
| DF | French Communications |
| DG | Enemy Communications |
| DH | Enemy and Other Interference with U.S. and Allied Communications |
| DI | Italian Communications |
| DJ | Directions for Making and Forwarding Reports |
| DL | Laying, Cutting, and Destroying Cables |
| DM | Mercantile Codes, Ciphers, and Signals |
| DN | Navy Codes, Ciphers, and Signals |
| DP | Organization of U.S. Navy Communications, Policies, and Plans |
| DW | Communication with Aircraft |
| E Supply Oil and Coal | |
| EF | U.S. Supply Oil--U.S. Ships, and Bases |
| EG | Food, Clothing, and Small Stores |
| EW | Warfare, Ammunition, and Munitions |
| F Freedom of the Seas | |
| FB | Blockade |
| G Naval Aviation | |
| GA | Headquarters, U.S. Naval Aviation Forces |
| GA-1 | Paris |
| GA-2 | London |
| GA-3 | Italy |
| GC | Aircraft Constructions, Nomenclature, Numbering |
| GD | Casualties to Aircraft |
| GD-1 | United States |
| GD-2 | Allied |
| GD-3 | Enemy |
| GE | English Air Operations |
| GF | French Air Operations |
| GG | Enemy Air and Intelligence Operations |
| GH | Air Attacks |
| GI | Italian Air Operations |
| GK | Killingholme Project |
| GN | Northern Bombing Group |
| GP | Plans and Policies |
| GR | Requests for Aircraft |
| GS | Airplanes, Model Designation |
| GU | U.S. Air Operations |
| GZ | Results Obtained (Summaries) |
| H Engagements with Enemy | |
| HA | German Naval Vessels in North Sea |
| HC | Engagements with Enemy Commerce Raiders |
| HS | Sightings (not Actual Engagements) |
| HU | Engagements with Enemy Submarines |
| HV | Increase in U-Boat Warfare |
| HW | Decrease in U-Boat Warfare |
| HX | Warning or Lack of Warning of U-Boat Danger |
| HZ | Results Obtained (Summaries) |
| I Instructions, Orders, Regulations, Doctrine and Circular Letters | |
| IA | Circular Letters, Routine Despatches, etc. |
| IA-1 | Secretaryís Office |
| IA-2 | Naval Operations, Office of |
| IA-3 | Navigation, Bureau of |
| IA-4 | Ordnance, Bureau of |
| IA-5 | Steam Engineering and Engineering, Bureaus of |
| IA-6 | Aeronautics, Bureau of |
| IA-7 | Construction and Repair, Bureau of |
| IA-8 | Yards and Docks, Bureau of |
| IA-9 | Supplies and Accounts, Bureau of |
| IA-10 | Medicine and Surgery, Bureau of |
| IA-11 | U.S. Marine Corps Headquarters |
| IA-12 | Office of the Judge Advocate General |
| IA-13 | ALNAV Circulars |
| IA-14 | ALEUROPE Circulars |
| IA-15 | ALATLANTIC Fleet Circulars |
| IA-16 | Atlantic Fleet Circulars |
| IA-17 | Pacific Fleet Circulars |
| IA-18 | Asiatic Fleet Circulars |
| IA-19 | ALFRAN Circulars |
| IA-21 | Battle Fleet Circulars |
| IA-22 | Scouting Fleet Circulars |
| IB | Convoy Orders |
| IC | Campaign Orders |
| IC-3 | Cruiser Force |
| IC-4 | American Patrol Detachment |
| IC-5 | Patrol Force Campaign Orders |
| IC-6 | Destroyer Force |
| IC-7 | Submarine Force |
| IC-9 | Train |
| IC-10 | Submarine Chaser Squadron |
| IC-11 | Campaign Orders, U.S.S. Melville (Sims) |
| IC-12 | Campaign Orders, U.S.S. Columbia (Wilson) |
| ICA | Campaign Orders, Pacific Fleet |
| ICB | Campaign Orders, Cuban Navy |
| ID | Cruising Orders, Atlantic Fleet |
| ID-7 | Submarine Force |
| IDA | Cruising Orders, Pacific Fleet |
| IE | Squadron, Standing, and Station Orders |
| IF | Drill Orders |
| IH | Shipping Board Orders |
| II | Marine Corps Orders |
| IJ | Detachment Orders |
| IK | Hunt Instructions |
| IL | Lights |
| IM | Movement Orders, Atlantic Fleet |
| IM-1 | Battleship Force One |
| IM-2 | Battleship Force Two |
| IM-4 | American Patrol Detachment |
| IM-5 | Patrol Forces, Movement Orders |
| IM-6 | Submarine Force |
| IM-10 | Submarine Chaser Squadron |
| IM-11 | Marine Transport Detachment |
| IM-12 | U.S. Naval Missions, Movement Orders |
| IM-13 | U.S. Naval Detachment in Turkish Waters |
| IM-19 | U.S. Naval Detachment in Turkish Waters--Movement Orders |
| IMA | Movement Orders, Pacific Fleet |
| IN | Doctrine |
| IN-1 | U.S. and Allied |
| IP | Operation Orders, Atlantic Fleet |
| IP-1 | Battleship Force One |
| IP-2 | Battleship Force Two |
| IP-3 | Cruiser Force and Special Service Squadron |
| IP-4 | American Patrol Detachment |
| IP-5 | Patrol Force |
| IP-6 | Destroyer Force |
| IP-7 | Submarine Force |
| IP-8 | Mine Force |
| IP-9 | Train |
| IP-10 | Submarine Chaser Squadron |
| IP-11 | Transport Force |
| IP-12 | Melville (Sims) |
| IP-14 | Air Squadrons |
| IPA | Operation Orders, Pacific Fleet |
| IPC | Operation Orders, U.S. Fleet |
| IQ | Mining Orders |
| IR | Regulations |
| IS | Sailing Orders |
| IS-2 | Gibraltar |
| IS-3 | Queenstown |
| IS-4 | Plymouth |
| IS-5 | Halifax |
| IS-6 | Inverness |
| ISA | Pacific Fleet, Sailing Orders |
| IT | Routing Orders and Instructions |
| IV | Instructions Concerning the Right of Visit and Search |
| IW | Enemy Orders |
| IX | Exercise Orders |
| IY | Admiralty Orders |
| IZ | Force Orders |
| IZ-3 | Cruiser Force |
| IZ-5 | Patrol Force |
| IZ-6 | Destroyer Force |
| IZ-7 | Submarine Force |
| IZ-9 | Train |
| IZ-10 | Submarine Chaser Squadron |
| IZ-11 | Transports |
| IZ-12 | U.S. Naval Forces Operating in European Waters |
| ISA | Orders, Pacific Fleet |
| J U-Boat Campaign (Enemy) | |
| JA | Atlantic Area |
| JA-1 | Eastern Atlantic |
| JA-2 | Western Atlantic |
| JB | U-Boat Bases |
| JC | U-Boat Construction |
| JD | Description and Characteristics, Armament, etc. of U-Boats |
| JE | Enemy Naval Construction (except U-Boats) |
| JK | Casualties and Losses, Enemy Naval Ships Other than U-Boats |
| JL | U-Boat Losses |
| JM | Mediterranean Area |
| JN | North Sea Area |
| JO | Distribution, Mobilization, Demobilization, and Organization of Enemy Campaign and Submarines |
| JP | Plans and Policies, Enemy Campaign |
| JR | U-Boat Reports (from Enemy Point of View) |
| JS | Activities, Characteristics, and Descriptions of German and Austro-Hungarian Fleets |
| JT | Enemy Navy Ships (Other than U-Boats) |
| JU | U-Boats |
| JV | Violation of Neutral Waters |
| JY | Enemy War Ships Interned or Seized During the War |
| JZ | Results Obtained (Summaries) |
| K Forces, U.S. and Allied, Unless Otherwise Specified | |
| KA | Shipsí Honors, Marks for War Service and for Sinking an Enemy Submarine |
| KB | Internal Administration and Organization of Ships |
| KD | Distribution of Forces |
| KM | Mobilization of Forces |
| KN | Organization of Forces |
| KO | Demobilization of Forces |
| KQ | Comparison Between Construction and Loss, U.S., Allied, and Neutral |
| KR | Requests for Forces |
| KS | Reports of Ships Movements |
| KU | U.S. Construction |
| KV | Allied Construction |
| KW | Comparison of Construction Companies, Allied and Enemy |
| L Strategy and Tactics | |
| LA | Camouflage |
| LP | Plans and Policies |
| LZ | Zigzagging |
| M Land Military Operations | |
| MA | Army Aviation |
| MD | Army Communications |
| MI | Instructions, Orders, Regulations, and Circular Letters |
| MP | Army Operations and Organization--Plans and Policies |
| MR | Red Cross, Y.M.C.A. |
| N Personnel (U.S. except when otherwise specified) | |
| NA | Personnel, general |
| NA-1 | Officers, Navy |
| NA-2 | Officers, Marine Corps |
| NA-3 | Enlisted Personnel, Navy |
| NA-4 | Marine Corps Personnel |
| NA-5 | Allied Navy Personnel |
| NA-6 | Enemy |
| NB | Misunderstanding, Confusion of Orders, Disobedience of Orders |
| NC | Casualties |
| NC-1 | U.S. Navy, Officers and Men |
| NC-2 | Allied Navies, Officers and Men |
| NC-3 | Neutral Navies, Officers and Men |
| NC-4 | Enemy Navies, Officers and Men |
| NC-5 | Non-Combatants, U.S. and Allied Countries |
| NC-7 | Officers and Crews of Merchant Ships, All Countries |
| NC-8 | Marine Corps Officers and Men |
| NC-9 | Loss of U.S. Troops on Transports |
| ND | Demobilization |
| ND-1 | Officers |
| ND-2 | Enlisted Men |
| NE | Requests for Personnel |
| NF | Distribution of Forces |
| NF-1 | U.S. and Allied |
| NH | Heroic Acts, Commendations, Honors, and Medals |
| NH-1 | General |
| NH-2 | Individual |
| NH-3 | Foreign |
| NH-3A | U.S. Commendations to Foreigners |
| NH-3B | Foreign Commendations to Americans |
| NH-3C | Foreign Commendations to Foreigners |
| NM | Mobilization |
| NM-1 | Officers |
| NM-2 | Enlisted Men |
| NO | Personal Orders to Officers--Commander, Detachment, and Squadron Commanders |
| NP | Plans and Policies, Naval Officers and Men (U.S. and Allied) |
| NQ | Prisoners of War and Interned Persons, Naval, Military, and Civil |
| NQ-1 | Miscellaneous |
| NQ-2 | Allied |
| NQ-3 | Enemy |
| O Operations | |
| OA | Operations of Two or More Classes of Navy Ships |
| OB | United States Battleships |
| OC | U.S. Cruisers |
| OD | U.S. Subchasers |
| OE | U.S. Destroyers |
| OF | U.S. Patrol Forces |
| OH | Operations of Naval Auxiliaries (including Tugs, Destroyer Tenders, Submarine Tenders, Colliers, Oilers, Ammunition Ships, Aircraft Carriers, Repair Ships, Store Ships) |
| OK | U.S. Coast Guard |
| OM | U.S. Minelayers and Minesweepers |
| ON | U.S. Submarines |
| OP | Policies and Plans (Operational) |
| OQ | Q-Ships, Mystery Ships, Decoy Ships (U.S. and Allied) |
| OR | Operations, U.S. and Allied in Adriatic |
| OR-1 | Otranto Barrage |
| OR-2 | Adriatic |
| OR-3 | Mediterranean |
| OS | United States Naval Vessels |
| OT | Allied and Neutral Navy Ships |
| OU | Cases of Visit, Search, and Use of Neutral Flags for Privateering |
| OV | Allied and Neutral Navy Shipsí File |
| OW | Atlantic Fleet Reports |
| OX | Pacific Fleet Reports |
| OY | Asiatic Fleet Reports |
| OZ | Results Obtained |
| P Naval Bases | |
| P | Bizerta |
| P | Bordeau |
| P | Brest |
| P | Cardiff |
| P | Corfu |
| P | Gibraltar |
| P | Invergordon |
| P | Inverness |
| P | LíOrient |
| P | Malta |
| P | Plymouth |
| P | Ponta del Gada |
| P | Queenstown |
| P | Rochefort |
| P | Saint Nazaire |
| PA | Arcacon |
| PA | Berehaven |
| PA | Bolsena |
| PA | Brest |
| PA | Castletownbere |
| PA | Coco Solo |
| PA | Dunkirk |
| PA | Eastleigh |
| PA | Fromentine |
| PA | Guipavas |
| PA | Gujan |
| PA | Ile Tudy |
| PA | Killingholme |
| PA | LíAber Vrach |
| PA | La Pallice |
| PA | La Teste |
| PA | La Trinite |
| PA | Le Croisic |
| PA | Lough Foyle |
| PA | Moutchic |
| PA | Paimbeouf |
| PA | Paulilac |
| PA | Pescara |
| PA | Porto Corsini |
| PA | Queenstown |
| PA | Saint Trojan |
| PA | Tours |
| PA | Treguier |
| PA | Wexford |
| PA | Whiddy Island |
| PA-1 | Naval Air Bases and Detachments in U.S. |
| PF | Foreign Bases, Naval and Air (not U.S.) |
| PG | Enemy Bases, Naval and Air |
| PH | Base Hospitals (Naval) |
| PM | Four Districts Off French Coast (Cherbourg, Brest, LíOrient, Rochefort) |
| PN | Naval Districts |
| PN-1 | First Naval District |
| PN-2 | Second Naval District |
| PN-3 | Third Naval District |
| PN-4 | Fourth Naval District |
| PN-5 | Fifth Naval District |
| PN-6 | Sixth Naval District |
| PN-7 | Seventh Naval District |
| PN-8 | Eight Naval District |
| PN-9-10-11 | Ninth, Tenth, and Eleventh Naval Districts |
| PN-12 | Twelfth Naval District |
| PN-13 | Thirteenth Naval District |
| PN-14 | Fourteenth Naval District |
| PN-15 | Fifteenth Naval District |
| PN-16 | Sixteenth Naval District |
| PO | Port Officers (U.S. and Allied) |
| PP | Protection of Private Plants Wharves, and Water Fronts, and Plans and Policies for Organization of Bases, Naval and Air |
| PQ | Demobilization of Bases, Naval and Air |
| PR | Staff Representative, U.S. Navy Department (Paris) |
| PS | Outlying Naval Districts |
| PW | Radio or Wireless Stations |
| Q Councils, Conferences, Commissions, Boards, and Committees | |
| QA | Air Conferences, U.S. and Allied |
| QC | Allied Naval Council, London, Paris, Rome |
| QF | Naval and Military Conference |
| QH | Inter-Allied Naval Committee (Adriatic) |
| QI | International Naval Conference |
| QL | International Labor Conference |
| QM | Allied Conference on Mediterranean Mine Laying |
| QN | Allied Naval Armistice Commissions |
| Other Councils, Boards, Conferences, Commissions, etc. | |
| QR | Allied and Inter-Allied Radio Commission and Conferences |
| QS | Inter-Allied Signal Conference |
| QW | Supreme War Council |
| QY | London and Other Conferences |
| R Casualties to Ships | |
| RA | U.S. Navy Ships |
| RB | U.S. Merchant Ships |
| RC | Collisions |
| RD | Contact with Mines |
| RE | Explosions and Fires |
| RG | Groundings, Naval and Merchant |
| RM | Mistaken Attacks |
| RN | Allied Naval Ships (Casualties to) |
| RP | Allied Merchant Ships |
| RR | Neutral Navy and Merchant Ships |
| RS | Foreign Merchant Ships and Sailing Vessels Sunk by Subs and Mines in the Atlantic and Mediterranean During the War |
| RT | Salvage |
| RV | Enemy Navy and Merchant Ships |
| RW | Wrecks |
| RX | Disappearances |
| RY | Miscellaneous Accidents |
| RZ | Casualties to Ships of All Countries, Navy and Merchant (when mentioned in the same paper) |
| S Ships (Merchant) | |
| SA | Armed Guard Reports |
| SA-1 | Naval Port Guard |
| SC | American, Allied, and Neutral Merchant Ships |
| SD | Merchant Vessels ( A list of vessels is available.) |
| SE | Enemy Merchant Ships |
| SG | U.S. Merchant Construction |
| SH | Allied and Neutral Merchant Construction |
| SI | Enemy Construction (Merchant) |
| SK | Comparison Between U.S. and Allied Merchant Construction and Loss |
| SN | Neutral Merchant Ships Commandeered |
| SO | American and Allied Ships Taken Over for Government Use |
| SP | Plans and Policies for American, Allied, and Neutral Merchant Ships (including Arming Of, Taking Over from Owners, etc.) |
| SR | Enemy Merchant Ships Interned or Seized During War |
| ST | Prizes of War |
| SY | Pershingís Fleet and Other Armed Guard Merchantmen in Army Service |
| SZ | Results Obtained (Summaries) |
| T London Headquarters | |
| TA | Force Commanderís General Reports |
| TB | Force Commanderís General Bulletins |
| TC | Force Commanderís Circular Letters |
| TD | Admiral Simsí Personal File |
| TE | Force Commanderís Telegrams |
| TF | Force Instructions |
| TG | Force Commanderís Daily and Weekly Memoranda |
| TH | Force Commanderís Daily Conferences with Admiralty |
| TI | Force Commanderís Information Bulletins |
| TJ | Force Commanderís Intelligence Memoranda |
| TL | Organization, Administration, etc., of London Headquarters |
| TM | Force Commanderís Monthly Bulletins |
| TO | Force Commanderís Office Memoranda |
| TP | General Plans and Naval Policies, U.S. and Other Navies |
| TS | Force Commanderís Staff Memoranda |
| TT | Joint Arrangements, U.S. and Other Navies |
| TV | Joint Arrangements, U.S. Army and Navy |
| TX | Planning Section |
| U Navy Department | |
| UB | Admiral Bensonís Personal File |
| UD | Broad Questions Arising Between the Navy Department and Other Departments |
| UE | Broad Questions Arising Between the Navy Department and Allied Governments |
| UF | Questions Arising Between the Navy Department and All the Shipping Board including the Emergency Fleet Corporation |
| UG | Questions Arising Between Outside Bureaus and Offices Other than Shipping Board |
| UH | Questions Arising Between Navy Department and Private Owners of Ships; Between Navy Departments and Corporations Owning Shipyards and Docks |
| UP | Plans and Policies, U.S. Naval Forces |
| V Diplomatic Aspects | |
| VA | Armistice |
| VB | Threatened Severance of Diplomatic Relations |
| VC | Declaration of War or Severance of Diplomatic Relations |
| VD | Disposition of Enemy Warships After the Armistice |
| VE | Enemy Merchant Ships Surrendered After the Armistice |
| VL | League of Nations |
| VM | Missions To and From the United States |
| VO | Mandates |
| VP | Diplomatic Policies and Plans including Peace Plans |
| VP-1 | Pre-war |
| VP-2 | During War |
| VP-3 | Peace |
| VT | Treaties |
| VV | Official Visits |
| VW | Courtesies Exchanged, Salutes Exchanges, Expressions of Sympathy |
| W War Situation | |
| WA | Allied Countries and Their Possessions |
| WA-1 | Two or More Allied Countries |
| WA-2 | England |
| WA-3 | France |
| WA-4 | Italy |
| WA-5 | Japan |
| WA-6 | Russia |
| WA-7 | Allied Countries Not Otherwise Specified |
| WE | Neutral Countries and Their Possessions |
| WE-1 | Two or More Neutral Countries |
| WE-2 | Denmark |
| WE-3 | Holland |
| WE-5 | Mexico |
| WE-6 | Norway |
| WE-7 | Spain |
| WE-8 | Sweden |
| WE-9 | Switzerland |
| WE-10 | Neutral Countries Not Otherwise Specified |
| WF | Pacific Islands |
| WF-1 | Caribbean Countries |
| WG | Enemy Countries |
| WJ | Adriatic Situation, Yugoslavia, and Yugoslav Waters |
| WP | Enemy Plotting in Associated, Allied, and Neutral Countries, and Persons Suspected of Aiding the Enemy |
| WR | War Expenditures |
| WS | Speeches, Statements, etc. |
| WT | Turkey |
| WU | U.S. Government |
| WU-1 | U.S. Internal Situation |
| WU-2 | U.S. Government, Policies, and Plans and Acts, Before, During, and After the War |
| WV | Value of the U.S. in the War |
| WW | War Sea Areas |
| WW-1 | Defensive Sea Areas as Defined by the United States |
| WW-2 | War Zones as Defined by the Enemy |
| WX | Intelligence Service and Publications |
| WX-1 | United States |
| WX-2 | Great Britain |
| WX-3 | France |
| WX-4 | Italy |
| WX-5 | Enemy |
| WX-6 | Allied |
| WX-7 | Neutrals |
| WX-8 | Central America |
| WY | Intelligence Services of Allied and Neutral Countries |
| WZ | Cooperation or Lack of Cooperation Between Intelligence Services, All Countries |
| Y Naval Pipe Line | |
| Z Histories | |
| ZA | Mining Operations |
| ZAG | Enemy Mining Operations |
| ZAN | Northern Mine Barrage |
| ZAU | United States Mining Operations Not Otherwise Specified |
| ZAW | Warning of Mines |
| ZB | Batteries |
| ZBN | Naval Railway Batteries |
| ZC | Convoy and Escort |
| ZCG | Groups of Convoys |
| ZCM | Mediterranean Convoy and Escort |
| ZCN | Naval Overseas Transportation Service |
| ZCO | Merchant Ships Convoyed or Escorted |
| ZCP | Mercantile Convoy Organization |
| ZCR | Cruiser and Transport Service |
| ZCT | Troops Escorted, Transported, and Returned |
| ZCY | Army Coal Trade |
| ZD | Communications |
| ZDG | Enemy Communications |
| ZDN | Navy Codes, Ciphers, and Signals |
| ZDP | Organization of U.S. Navy Communications |
| ZG | Naval Aviation |
| ZGE | English Air Operations |
| ZGG | Enemy Air Operations |
| ZGH | Air Attacks (All Countries on Land or Sea) |
| ZGN | Northern Bombing Group |
| ZGU | U.S. Air Operations Not Otherwise Specified |
| ZIR | Regulations |
| ZJ | U-Boat Campaign and Enemy Navy Ships |
| ZJA-2 | Western Atlantic |
| ZJN | North Sea Area |
| ZJR | U-Boat Reports |
| ZJS | Enemy Naval Ships Other Than U-Boats, Description, Characteristics, and Reports |
| ZJT | Enemy Naval Ships Other Than U-Boats |
| ZK | Forces, U.S. and Allied (unless Otherwise Specified) |
| ZL | Strategy and Tactics |
| ZLA | Anti-Submarine and Other Enemy Ships |
| ZM | Land Military Operations |
| ZMA | Army Aviation |
| ZN | Personnel |
| ZNA | Officers and Enlisted Men, Navy and Marine Corps, Regulars and Reserves, Allied and Enemy |
| ZNC | Casualties |
| ZNH | Heroic Acts, Commendations, Honors, and Awards |
| ZNQ | Prisoners of War and Interned Persons, Naval, Military and Civil |
| ZO | Operations of Naval Ships |
| ZOB | U.S. Battleships |
| ZOD | U.S. Subchasers |
| ZOE | U.S. Destroyers |
| ZOF | U.S. Patrol Force |
| ZOH | U.S. Naval Auxiliaries |
| ZOK | U.S. Coast Guard |
| ZOM | U.S. Minelayers and Minesweepers |
| ZON | U.S. Submarines |
| ZOQ | Q-Ships, Mystery Ships, Decoy Ships, U.S. and Allied |
| ZOR | U.S. and Allied Operations on the Otranto Barrage, in the Adriatic and Mediterranean |
| ZOS | Battles |
| ZOT | Allied and Neutral Navy Ships |
| ZOW | Atlantic Fleet |
| ZOX | Pacific Fleet |
| ZOY | Asiatic Fleet |
| ZOZ | Results Obtained |
| ZP | Bases |
| ZPA | Air Bases (Naval) |
| ZPF | Foreign Bases, Naval and Air, not U.S. |
| ZPH | Base Hospitals (Naval) |
| ZPN | Naval Districts, Organization and Activities of |
| ZPN-1 | 1st Naval District |
| ZPN-2 | 2nd Naval District |
| ZPN-3 | 3rd Naval District |
| ZPN-4 | 4th Naval District |
| ZPN-5 | 5th Naval District |
| ZPN-6 | 6th Naval District |
| ZPN-7 | 7th Naval District |
| ZPN-8 | 8th Naval District |
| ZPN-9 | 9th, 10th, and 11th Naval Districts |
| ZPN-12 | 12th Naval District |
| ZPN-13 | 13th Naval District |
| ZPN-14 | 14th Naval District |
| ZPN-15 | 15th Naval District |
| ZPN-16 | 16th Naval District |
| ZPO | Port Offices, U.S. and Abroad |
| ZPS | Outlying Naval Districts |
| ZPW | Radio or Wireless Stations |
| ZQ | Joint Naval Councils, Conferences, and Commissions |
| ZQA | Air Conference, U.S. and Allied |
| ZQR | Miscellaneous Councils on Communications, Radio, Wireless, etc. |
| ZQT | Organization and Operation of Salvage Division in European Waters--Historical Section Narrative Relative to |
| ZRN | Allied Navy Ships |
| ZRT | Salvage |
| ZS | Merchant Ships (U.S. Unless Otherwise Specified) |
| ZSA | Armed Guard Reports |
| ZT | London Headquarters |
| ZTL | Organization, Administration, etc. |
| ZTV | Joint Arrangements, U.S. Army and Navy |
| ZTX | Planning Section |
| ZU | Navy Department |
| ZV | Diplomatic Aspect |
| ZVA | Armistice Story: Armistice Notes (War Diary) |
| ZVC | Declaration of War or Severance of Diplomatic Relations |
| ZVD | Enemy War Ships Surrendered After the Armistice and Final Disposition Of |
| ZW | War Situation |
| ZWA-2 | England |
| ZWA-3 | France |
| ZWA-4 | Italy |
| ZWA-6 | Russia |
| ZWA-7 | Allied Countries Not Otherwise Specified |
| ZWE | Neutral Countries and Their Possessions |
| ZWE-3 | Holland |
| ZWE-10 | Neutral Countries Not Otherwise Specified |
| ZWG | Enemy Countries |
| ZWJ | Adriatic Situation, Jugo-Slavia and Jugo-Slav Waters |
| ZWT | Turkey |
| ZWX | U.S. Intelligence Service and Publications in All Countries |
| ZY | Naval Pipe Line |
| ZZ | History |
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